Car-wheel



`To all whom it may con/cern.:A

f UNTED STATES- PATENT OFFICE.

i LUTHER A. ROBY AND SAMUEL T. WELLMAN, OF CLEVELAND, OHIO.

CAR-WHEL SPECIFICATION forming part of Letters-Patent No. 284,330,` dated September 4, 18E?.

` Application filed February 16, 1883. (No model.)

f Be it known that We, L. A. `ROBY and S.

of Cleveland, in the county of Guy- WELLMAN,

`ahoga and State of Ohio, have invented certain new and useful Improvements in Railroad- Car Wheels; andwe do hereby declare the p following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it pertains to make and use the same.

Our invention relates to an improvement in lrailroad-car wheels, the object of the same being to provide improved means for securing together the parts of a sectional car-wheel;`

and with this end 'in view our invention con-` sists in the parts and combinations of parts,

as will be'more fully described and claimed.

In the accompanying drawings, Figure l is p y a view in elevation of our improved wheel.

Fig. 2 is a transverse sectional view of the same, and Fig. 3 is a similar view of aj modified form of wheel.

The body of the wheel A is formed by the union of two soft-steel cast plates, B B', which latter, when secured together by bolts a or rivets b, forni `the hub of the wheel and constitute, respectively, the inner and outer facesthereof. These plates B B are so formed as to abut against each other at one or more points for thepurpose of enabling them to be securely iastenedtogether without any danger of straining, and are each `provided with an outwardly-turned flange, C, to form the rim ofthe wheel.V When the two platesB B are secured together, an annular channel, D, is formed, in which the internal iiange, E, ofthe tire F rests. This tire Fis formed of hard p steel in the usualfmanner, and is providedon its side y edges with'the inwardlyprojecting tongues y, adapted to rest in corresponding grooves formed in the plates-B B, for the pur- I pose of securely holding the plates and tire to- `lowance being made for shrinkage.`

gether in case the bolts orrivets should be accidentally broken or lost.

In constructing one of our improved wheels, the plates B B to t the inside of the finished tire, proper al- The tire,

which has been previouslytrued, is now are first turned on the outside outer series of which pass through the inwardly-projecting flange of the tire, and prevents the tire from turning or changing its position on the plates in case it should expand on becoming highly heated by the friction of the brake-shoes.

The modied form shown in Fig. 3 is sub stantially the same as the wheel shown in Figs. l and 2, the difference being simply in the formation of the hub. In the first instan ce the hub is sectional and isformed by the union of the two plates, while in this case the complete hub is formed integral with the inner plate, While the outer plate is provided with a central opening for the passage of the outer end of the hub. In this construction the parts are secured together by bolts or rivets as desired.

This improved wheel is simple in construction, is durable in use, and can be manufactured at a small initial cost.

It is evident that slight changes in the construction ofthe severalparts might be resorted to without departing from the spirit of our invention; and hence we would have it understood thatwe do not limit ourselves to the exact construction of parts `shown and described, but consider ourselves at liberty to make such changes as fairly fall within the spiritand scope of our invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, isl. In a car-wheel, the combination, with the tire constructed with'an inwardly-projecting iiange, of a cast-steel body' composed of two plates constructed to form a peripheral groove for the reception of the flange on the tire, said plates being constructed to have their adjacent faces abut against each other near the hub and near the flange of the tire, and two rows of fastening-bolts, the inner row extending through the two plates near the hub and the outer row extending through the plates and tire-ange, substantially as set'forth. y

2. The combination, with the body formed of two east-steel platesz the latter having out- Wardly-turned flanges7 Which form the riln, and provided centrally with a peripheral groove or channel7 of the tire having` an in- Wardly-projeeting flange adapted to rest in the 1o channel or groove and two tongues adapted to rest in corresponding depressions formed in the flanges of the body.

In testimony whereof We have signed this specification in the presence of two subscribing witnesses. v

LUTHER A. ROBY. y SAMUEL T; VVELLMAN. Witnesses: A

W. H. SI-IEPARD, T. H. BRooKs. 

